The fix is available in the currently under development Ubuntu 13.10 "Saucy Salamander" in kernel 3.9.0-6.13 , whose description includes the following comment:
[ Upstream Kernel Changes ] * rebase to v3.9.6 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1169147 Title: External monitor connected to Cedarview drivers- required virtual size does not fit available size To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-modesetting/+bug/1169147/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs